MPLX LP COM UNIT REP LTD is a security (CUSIP 55336V900) tracked across SEC portfolio filings. 4 institutional managers reported $52.0M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $26.7M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $13.0M | — |
| IMC-Chicago, LLC | CHICAGO, IL | $12.3M | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |